List of Engineering Companies

This list compiles the top engineering companies in the world, listing them by prominence alongside corporate logos. This list of major engineering companies includes the largest and most profitable engineering businesses, corporations, agencies, vendors, and firms, including international engineering conglomerates.

If you are wondering what the biggest engineering companies are, you've come to the right place. This list includes the most famous engineering companies in the industry. If you're looking for companies that hire engineers, you'll find a whole list of engineering firms right here. And if you're looking for a reliable engineering business, each company on this list is worth examining.

This list features diverse companies like UnitedHealth Group and Lockheed Martin, while also answering the questions, "What are the biggest engineering companies in the world?" and "What are the most successful engineering companies?"
Ranked by
  • 3M
    Surgical and Medical Instruments and Apparatus, Biotechnology, Manufacturing
    The 3M Company, formerly known as the Minnesota Mining and Manufacturing Company, is an American multinational conglomerate corporation based in St. Paul, Minnesota. 3M headquarters are in the St. ...more
  • A. Reyrolle & Company was a British engineering firm based in Hebburn, Tyne and Wear in the North East of England. For many years the company was one of the largest employers on Tyneside.
  • Aalberts Industries

    Aalberts Industries

    Manufacturing, Engineering
    Aalberts Industries N.V. is a Dutch public company, founded by Jan Aalberts in 1975.
  • Abengoa

    Abengoa

    Technology, Engineering
    Abengoa, S.A. is a Spanish multinational corporation, which includes companies in the domains of energy, telecommunications, transportation, and the environment. The company was founded in 1941 by ...more
  • Acciona
    Construction, Engineering
    Acciona, S.A. is a Spanish conglomerate group dedicated to civil engineering, construction and infrastructure. The company was founded in 1997 through the merger of Entrecanales y Tavora and ...more
  • Aecom Technology Corporation
    Mining, Energy, Architectural Services
    AECOM is a global provider of professional technical and management support services to a broad range of markets, including transportation, facilities, environmental, energy, water and government. ...more